公开(公告)号：US3880450A

公开(公告)日：1975-04-29

申请号：US36785573

申请日：1973-06-07

申请人： LEAR SIEGLER INC

发明人： WARE NATHAN C

IPC分类号： B60D1/06

CPC分类号： B60D1/065

摘要： A coupler for a trailer and the like, the coupler having a body and cap hinged together at a front portion and closeable along parting faces with an internal cavity formed by the body and the cap for a ball which is conventionally secured to the towing vehicle. The body forms a major portion of the ball cavity and includes a ball centering upper surface which extends substantially laterally across the upper surface of the cavity forming a self-centering bearing surface for the ball. A load distributing means is uniquely formed on a rear portion of the parting faces of the body and cap to restrain relative vertical movement between the body and cap along the parting faces thereof. The load distributing means includes a horizontal shelf extending from the ball cavity and a complementary recess, with the horizontal shelf preferably being formed on the parting face of the body. The parting faces are desirably vertical adjacent the ball cavity and juxtaposed locking flanges extend upwardly from the vertical faces of the body and cap. Holes in registry with each other extend through the locking flanges so that the cap and body can be padlocked in the closed position.

摘要翻译： 一种用于拖车等的联接器，该联接器具有主体和盖子，该主体和盖子在前部部分处铰接在一起并且可以沿着分离面与由本体形成的内部空腔和用于球的帽形成，该盖通常固定在牵引车上。 主体形成球腔的主要部分，并且包括球体定心的上表面，其基本横向延伸穿过腔的上表面，形成用于球的自定心支承表面。 负载分配装置独特地形成在主体和盖的分型面的后部上，以沿着其分离面限制主体和盖之间的相对垂直运动。 负载分配装置包括从球窝延伸的水平货架和互补的凹槽，优选地，水平货架形成在主体的分型面上。 分离面理想地垂直于球腔并且并置的锁定凸缘从主体和盖的垂直面向上延伸。 彼此对准的孔通过锁定凸缘延伸，使得盖和主体可以在闭合位置被挂锁。